15 #ifndef __included_fifo_segment_h__ 16 #define __included_fifo_segment_h__ 29 #define FIFO_SEGMENT_MIN_LOG2_FIFO_SIZE 12 30 #define FIFO_SEGMENT_MIN_FIFO_SIZE 4096 31 #define FIFO_SEGMENT_MAX_FIFO_SIZE (2 << 30) 32 #define FIFO_SEGMENT_ALLOC_BATCH_SIZE 32 84 #define fifo_segment_flags(_fs) _fs->h->flags 142 u32 chunk_size,
u32 batch_size);
225 u32 timeout_in_seconds);
fifo_segment_header_t * h
fifo segment data
int fifo_segment_collect_fifo_chunks(fifo_segment_t *fs, svm_fifo_t *f)
Collect unused chunks for fifo.
int fifo_segment_attach(fifo_segment_main_t *sm, fifo_segment_create_args_t *a)
Attach as slave to a fifo segment.
int fifo_segment_prealloc_fifo_chunks(fifo_segment_t *fs, u32 slice_index, u32 chunk_size, u32 batch_size)
Try to preallocate fifo chunks on segment.
u32 fifo_segment_num_fifos(fifo_segment_t *fs)
Get number of active fifos.
enum fifo_segment_flags_ fifo_segment_flags_t
struct _svm_fifo svm_fifo_t
uword next_baseva
Where to put the next one.
void fifo_segment_update_free_bytes(fifo_segment_t *fs)
Update fifo segment free bytes estimate.
u8 fifo_segment_has_fifos(fifo_segment_t *fs)
enum ssvm_segment_type_ ssvm_segment_type_t
int fifo_segment_create(fifo_segment_main_t *sm, fifo_segment_create_args_t *a)
Create a fifo segment and initialize as master.
uword n_fl_chunk_bytes
Chunk bytes on freelist.
void fifo_segment_delete(fifo_segment_main_t *sm, fifo_segment_t *fs)
uword fifo_segment_free_bytes(fifo_segment_t *fs)
Fifo segment estimate of number of free bytes.
char * segment_name
segment name
svm_fifo_t * free_fifos
Freelists by fifo size.
u32 fifo_segment_num_free_fifos(fifo_segment_t *fs)
u32 fifo_segment_index(fifo_segment_main_t *sm, fifo_segment_t *fs)
int fifo_segment_init(fifo_segment_t *fs)
Initialize fifo segment shared header.
svm_fifo_t * fifos
Linked list of active RX fifos.
u32 segment_size
size of the segment
ssvm_private_t ssvm
ssvm segment data
format_function_t format_fifo_segment_type
int fifo_segment_prealloc_fifo_hdrs(fifo_segment_t *fs, u32 slice_index, u32 batch_size)
Try to preallocate fifo headers.
int memfd_fd
fd for memfd segments
u8 n_slices
number of fifo segment slices
struct fifo_segment_slice_ fifo_segment_slice_t
manual_print typedef address
fifo_segment_t * fifo_segment_get_segment(fifo_segment_main_t *sm, u32 fs_index)
fifo_segment_t * segments
pool of fifo segments
ssvm_segment_type_t segment_type
type of segment requested
void fifo_segment_info(fifo_segment_t *seg, char **address, size_t *size)
void fifo_segment_main_init(fifo_segment_main_t *sm, u64 baseva, u32 timeout_in_seconds)
uword fifo_segment_fl_chunk_bytes(fifo_segment_t *fs)
Number of bytes on chunk free lists.
u32 fifo_segment_num_free_chunks(fifo_segment_t *fs, u32 size)
Find number of free chunks of given size.
svm_fifo_t * fifo_segment_get_slice_fifo_list(fifo_segment_t *fs, u32 slice_index)
int fifo_segment_grow_fifo(fifo_segment_t *fs, svm_fifo_t *f, u32 chunk_size)
Grow fifo size by adding an additional chunk of memory.
svm_fifo_t * fifo_segment_alloc_fifo_w_slice(fifo_segment_t *fs, u32 slice_index, u32 data_bytes, fifo_segment_ftype_t ftype)
Allocate fifo in fifo segment.
u32 timeout_in_seconds
Time to wait during attach.
void fifo_segment_free_fifo(fifo_segment_t *fs, svm_fifo_t *f)
Free fifo allocated in fifo segment.
format_function_t format_fifo_segment
svm_fifo_chunk_t ** free_chunks
Freelists by chunk size.
u32 * new_segment_indices
return vec of new seg indices
void fifo_segment_preallocate_fifo_pairs(fifo_segment_t *fs, u32 rx_fifo_size, u32 tx_fifo_size, u32 *n_fifo_pairs)
Pre-allocates fifo pairs in fifo segment.